Robotic pool cleaners can look impressive under controlled conditions. The more meaningful test isn’t how a cleaner performs in a demonstration environment, but how it handles real-world conditions in an actual swimming pool over time.

Leaves, dirt, pet hair, changing weather, irregular pool geometry and everyday use can expose things that simply don’t show up during a short product demonstration.

That was the idea behind Pool Magazine’s recent evaluation of the iGarden K Series robotic pool cleaner.

Rather than conduct a short-term test, we placed the K Series with pool professional Kelli Clancy, owner of Legacy Pool and Spa in Sacramento, who installed the unit in one of her customer’s pools. The homeowner used the cleaner over an extended period, while Clancy monitored its performance and gathered feedback about what worked well and where the cleaner had limitations.

The result was a practical assessment of a cordless robotic cleaner that Clancy believes could make a compelling option for homeowners buying their first robot.

A Real Backyard Instead of a Test Tank

Clancy deliberately selected a pool that would give the K Series plenty to contend with.

“I chose this particular pool for a variety of reasons,” Clancy explained. “One, I knew the customer would give me honest feedback. I knew she would try and get everything she wanted out of the cleaner and give an honest review.”

The surrounding landscape also created a good mixture of debris.

“They had small leaves, big leaves, pine trees,” Clancy said. “So it was a variety of debris I wanted to be able to know if it could pick up.”

As luck would have it, an unrelated issue had also temporarily taken the pool’s circulation system offline, leaving the water somewhat dirtier than usual when the K Series arrived. That provided another opportunity to see how the cleaner handled real debris rather than a carefully prepared demonstration.

The pool itself presented an additional challenge. It was an older freeform gunite pool with curves, varying radiuses and features that would test the cleaner’s ability to navigate something considerably more complicated than a rectangular test pool.

For Clancy, that distinction matters when evaluating robotic cleaners.

“It’s not as authentic as putting it into somebody’s pool in an everyday yard where you have, you know, squirrels, and dogs, and wind, and rain, and all these varieties of things going on,” she said of controlled product demonstrations.

Strong First Impressions

Out of the box, the K Series made a favorable impression.

“I thought it had a very sleek look,” Clancy said. “It has a great look to it, you know, very modern. It wasn’t too bulky, which I did like about it.”

More important than aesthetics was the filtration system. The cleaner includes a fine-mesh filter that fits onto the debris canister, allowing it to capture smaller material in addition to larger debris.

“I really liked that it came with that so it can catch that fine debris such as dog hair or dirt,” Clancy said.

The cordless design was another immediate positive for the homeowner. She had previously owned another robotic cleaner that required placement on a charging base. The K Series offered a simpler arrangement.

“She liked on this one you could just plug it anywhere,” Clancy said. “You didn’t have to put it on a base, and it charged within three hours. She really liked that aspect of it.”

For a homeowner who wants a cleaner without adding another permanent charging station around the pool area, that simplicity can be an attractive feature.

Cleaning the Floor, Walls and Waterline

The K Series provides operating modes for floor cleaning as well as floor-and-wall cleaning. Once operating in the latter mode, Clancy found that the robot was capable of climbing the pool walls all the way to the waterline.

“It did go up the walls and did a good job at cleaning them,” she said. “So I really liked that about it.”

That capability stood out to the homeowner because previous cleaners she had owned did not provide the same wall-cleaning performance.

“That was a feature she really enjoyed,” Clancy said.

The robot also surprised Clancy by making its way onto the pool’s tanning ledge.

“It went up onto the tanning ledge. And that was surprising to me,” she said.

What impressed her most, however, was how quickly the K Series could make a noticeable difference.

“Me personally, watching it, I thought the cleaner did really well. I found that it cleaned the pool fairly quickly, which was really nice,” Clancy said. “So then if you have a party, you can just toss that in there and know within an hour that pool’s gonna be ready to go.”

Its ability to reach the waterline added another layer of cleaning.

“It climbs all the way up to clean the tile line, so that was really nice, too, if you haven’t brushed your tile in a while and have some leaves along there this will do a great job with that,” she added.

Handling Real Backyard Debris

Ultimately, a pool cleaner needs to pick things up, and Clancy came away impressed with the K Series’ ability to collect larger debris.

She specifically pointed to the tracks and intake design at the front of the cleaner.

“I think they got right with the tracks on the front where it’s collecting the debris,” Clancy said. “Those were very grippy, and when I watch it go over a pile of leaves, it was able to pull it in easily.”

Combined with the fine-mesh filtration, that gave the cleaner the ability to contend with the mixture commonly found in residential pools, including dirt, dog hair, leaves and pine needles.

Clancy sees that versatility as increasingly important as backyard landscaping becomes more elaborate and homeowners expect robotic cleaners to handle more than one specific type of debris.

Where Pool Geometry Matters

No robotic cleaner is necessarily going to perform identically in every swimming pool, and the K Series was no exception.

The test pool presented a particularly challenging combination of freeform curves and relatively narrow steps. The K Series has a fairly wide wheelbase, and Clancy observed that it could climb some steps but had difficulty stabilizing on others.

Importantly, she believed some of that behavior was specific to the dimensions of this particular pool.

“This particular issue may not be an issue in other pools, depending on the width of the steps,” Clancy explained. The steps in the test pool were approximately 10 inches wide, and she felt even slightly wider steps could have made it considerably easier for the robot to stabilize.

The irregular curves of the older freeform pool also occasionally presented navigation challenges. Based on what she observed, Clancy believes the K Series is likely to perform at its best in more geometrically shaped pools.

That doesn’t negate its performance in the test pool. The cleaner still climbed walls, reached the tile line, accessed the tanning ledge and collected a wide range of debris. It does, however, underscore something consumers should consider with any robotic cleaner: pool shape and feature dimensions can influence performance.

An Area With Room for Improvement

The primary area Clancy would like to see improved is app connectivity when the cleaner is submerged.

“The app needs a little improvement,” she said, noting that communication with the unit became less reliable once it was underwater.

For routine operation, however, Clancy found the cleaner itself straightforward to set up and use. When asked what might distinguish the K Series for someone comparing similarly priced robotic cleaners, she immediately pointed to that simplicity.

“Easy to program,” Clancy said. “It was pretty easy to program. I think that thing took maybe five minutes tops to program completely.”

The homeowner also appreciated a decidedly low-tech feature: the retrieval hook.

“That was one thing the homeowner did love was the hook that came with the cleaner actually worked,” Clancy said. Compared with another robot the homeowner had used, retrieving the K Series from the pool was considerably easier.

It may seem like a small consideration, but usability extends beyond how well a robot cleans. Charging it, programming it, removing it from the water and emptying the debris can determine whether a homeowner actually enjoys owning the product.

A Strong Entry Point Into Robotic Cleaning

With robotic cleaners now available across a wide range of prices and feature sets, one of the biggest questions is where a particular product fits.

For Clancy, the K Series occupies an appealing position for consumers who want to move into robotic cleaning without immediately jumping to the highest-priced equipment on the market.

“I would say it’s gonna be that middle ground customer, someone who’s looking for something that’s not the cheapest but not the most expensive,” she said. “Maybe more of your entry level robotic owner.”

Ease of use strengthens that argument.

“Overall, it seemed very easy to use for anybody, even somebody who doesn’t have ever used a robot,” Clancy said.

That may ultimately be one of the K Series’ strongest selling points. Robotic cleaners have become increasingly sophisticated, but sophistication isn’t necessarily what every homeowner wants. For someone purchasing their first cordless robotic cleaner, being able to charge it, program it quickly, drop it into the pool and retrieve a canister full of debris without a steep learning curve has considerable value.

Clancy’s final assessment carries additional weight because she doesn’t automatically endorse every cleaner she encounters.

“I could see this being a cleaner that I would recommend to people,” she said. “And I don’t recommend just any cleaner. I want something that actually works because, you know, it’s not a small price tag to get a robotic.”

After months in an actual customer’s backyard, the iGarden K Series showed itself to be an approachable cordless robotic cleaner with good debris pickup, wall and waterline cleaning, straightforward programming, convenient charging and thoughtful everyday usability.

There are areas where future generations could improve, particularly app connectivity and navigation around certain freeform curves or narrow features. Those considerations are worth understanding when matching any cleaner to a particular pool.

For homeowners looking to make the jump from traditional pool cleaning equipment to their first robotic cleaner, however, the K Series offers many of the capabilities that make robots attractive in the first place without making the experience unnecessarily complicated.

Should You Buy the iGarden K Series?

Yes.

The iGarden K Series makes the most sense for someone who wants to get into robotic pool cleaning without paying a premium for features they may not need. It’s a practical entry point into the category and, based on our real-world testing, capable enough to justify the investment.

That doesn’t mean it’s the perfect cleaner for every pool. More complex pool shapes and features deserve some consideration, and buyers expecting flawless app control may want to temper their expectations. But those shortcomings weren’t significant enough to change our overall opinion of the product.

What matters is whether the K Series delivers enough cleaning capability, convenience and usability to make owning one worthwhile. We think it does.

If you’ve been considering making the jump to a cordless robotic cleaner and want a capable unit without immediately moving into the upper end of the category, the iGarden K Series earns our recommendation.

And for an entry-level robotic cleaner, getting those fundamentals right matters most.

Ready to take a deeper dive?

Listen to our entire interview with Kelli Clancy about the iGarden K Series robot on the Pool Magazine podcast.

New products enter the pool industry every year with impressive technical claims. Getting contractors to actually change the way they work is another matter entirely.

That is particularly true in pool plastering, where experienced applicators tend to know exactly how their preferred mixes behave, how quickly they set and what to expect once a newly finished pool begins its startup. Any additive introduced into that process ultimately has to prove itself in the hands of the people doing the work.

That appears to be where Nano-Set by Sabal Green Group is beginning to gain some traction.

A liquid colloidal silicate admixture, Nano-Set was developed for cementitious pool finishes, designed to help address common plaster issues such as pigment loss, plaster dust and permeability while reducing the pH fluctuations that can make new pool startups more difficult.

Those are meaningful claims in the plaster business. They’re also the kind that contractors ultimately have to prove for themselves on actual jobs.

Jason Evans of Pool Boy Plastering is one of the plasterers who has put Sabal Green’s claims to the test.

“I’ve been talking about this product in our various pool groups and to everybody that I do business with because it’s been a really good admixture that we’ve been adding to our mixes,” Evans said.

Evans didn’t go all-in immediately. Pool Boy Plastering initially tried Nano-Set on a few projects to see how it affected the material and, importantly, how his finishers responded to it.

“We were kind of cautious, but once we used it, the crew liked it, and that’s very important,” Evans said.

His finishers describe the plaster as a little “juicier,” with more cream available during finishing. For some newer mixes that tend to be drier, that added workability was a welcome change.

But what ultimately convinced Evans to begin using the product on every job wasn’t simply how the plaster behaved under the trowel.

It was what happened after his crews left.

Fewer Problems After the Pool Is Filled

Once a newly plastered pool fills, the curing surface and the water begin interacting. That’s when plaster dust, rising pH, staining, scaling and mottling can turn into callbacks for the contractor.

Evans had heard what Nano-Set was supposed to do. He wanted to see whether those claims held up once pools were completed and put through startup.

“When I first heard about it, you hear these claims, it helps with the pH on the startup, it strengthens the plaster. It prevents some issues that have always been there with cement products that are underwater,” Evans said. “And you hear these claims and, finally I tested it, and sure enough, we find there’s a lot less warranty calls.”

Mottling was one area where the difference stood out.

“We haven’t gotten one complaint or call in regards to mottling since using the product” Evans said. “Typically we would get a couple calls a year.”

Operating in South Florida, Evans said his company would occasionally encounter darker areas around main drains, swim-outs and other portions of a finish where moisture could become a factor.

“Knock on wood, we haven’t had any mottling issues at all,” he said. “That’s a thing of the past.”

Part of what Nano-Set is designed to address happens during the normal curing of cement. Calcium hydroxide is produced during that process, and some of it can migrate toward the plaster surface. That’s one contributor to the familiar dust that startup technicians brush from a newly finished pool and to the elevated pH they often contend with during startup.

The mixture reacts with calcium hydroxide to form calcium silicate within the cement matrix. For Evans, the chemistry becomes much easier to appreciate when the pool is filled and brushed for the first time.

“Typically when you fill a pool up, and you brush it, it gets dusty, right?” Evans said. “And that’s the calcium that you’re brushing off the pool plaster. And so that has basically stopped.”

That has changed the startup experience as well.

“It’s just an easier startup. Much fewer chemicals. It’s just easier to balance out your water, and that tends to result in less staining,” Evans said.

Traditionally, managing a new plaster startup can involve repeated acid additions as the pH climbs again between visits. Evans said he’s seeing considerably less of that.

“The amount of acid that they have to add to the water to bring the pH within the acceptable range is a lot less,” he said.

That matters during the first days and weeks when the new finish is especially sensitive to water chemistry.

“The less chemicals you can add, the better during the startup process,” Evans said.

What Changes for the Plaster Crew

Of course, none of those benefits would mean much to a plaster company if the additive made the material considerably more difficult to install.

There are some adjustments.

Evans said crews need to account for it in their water content. He prefers a relatively stiff mud mix and cuts the water accordingly to maintain the proper concentration.

The product also slows the set slightly. In South Florida’s summer heat, Evans said that can work in the crew’s favor, particularly on sunny walls that tend to tighten up quickly. During cooler months, his crews may change the application sequence and begin with shaded walls.

Once his finishers adjusted, Evans said they found the material quite workable.

“My finishers describe it as a little more juicier,” he said. “It seems to bring more cement cream available for the finishing, so it tends to work out to be a smoother, flatter surface using Nano-Set.”

Where Evans sees an even bigger advantage is during exposure.

Quartz and aggregate finishes have to be exposed carefully. If too much of the cement matrix is removed during water washing, rough or inconsistent areas can develop. Evans refers to those areas as washouts.

“The real gold for us is the exposure,” he said.

“The material really binds it all together,” Evans continued. “Washouts, that’s what we call overexposed areas, that’s a thing of the past, and that’s gold for us because whenever you have something like that, it always results in a minor variation in how the pool plaster looks.”

For Evans, eliminating those variations ultimately means fewer opportunities for a customer to find something they don’t like.

“The less variation you have, the higher your customer satisfaction is and life is a lot easier,” he said.

Nano-Set also isn’t tied to a particular aggregate or finish system.

“If it has Portland cement in it, you can use Nano-Set,” Evans said. “It doesn’t matter what aggregate, or if you have different type of pigments. It basically works with the cement and during the cement curing process.”

Evans specifically pointed to PebbleTec, Florida Stucco and Diamond Brite as examples of finishes his company encounters in the field.

That compatibility made it easier for Pool Boy Plastering to move from testing Nano-Set to incorporating it into everyday production.

When Fewer Callbacks Pay for the Product

Adding another material to every plaster job comes with a cost, and Evans initially considered treating Nano-Set as an additional line item. His company’s annual pricing had already been established when they began testing it, however, so Pool Boy Plastering decided to absorb the expense while they evaluated the results.

As the number of completed jobs grew, Evans began looking at the cost differently.

“We figured that we would just eat it, right? We said, let’s try out this product and it seemed to be working good,” he said. “And now we kind of found that with the reduced callbacks and with the easier fire-ups, it basically pays for itself.”

For a plaster company, a callback costs more than the drive back to the job. Someone has to inspect the finish, determine what’s happening, and often walk a builder or homeowner through how cement curing and water chemistry may be affecting its appearance.

“If you’re not getting dark areas in your quartz finishes or your color isn’t getting calcified over, you’re getting less phone calls as a plaster installer,” Evans said. “And that means that you’re able to run your business better.”

“The time I spend doing that is a fraction of what it used to be,” he added, “and this is something that honestly is helping me run my business better.”

Putting It to Work on a Showcase Pool

A recent project for Pool Crafters’ Rocky Miller gave Evans an opportunity to put that confidence to work on a much larger canvas.

The pool features a large lazy river surrounded by extensive natural and artificial rockwork. Pool Boy Plastering installed a PebbleTec Tropical Breeze finish with additional Shimmering Sea abalone shell.

Miller had spent considerable time choosing the finish and was concerned about maintaining the color he wanted without scaling eventually leaving it looking lighter. By then, Evans had already used Nano-Set on roughly 20 pools his company had completed for Miller.

“He did notice that the startups were easier, and he hadn’t got any calls on pool scaling,” Evans said.

That track record gave Miller more confidence in moving forward with his finish selection.

“He didn’t have to put in a super dark surface into his pool to enjoy the blue because it would be whitewashed out from scaling over,” Evans said. “Something like that, it helps, especially on a big project like this.”

The project also illustrates why Nano-Set is beginning to find a following among plasterers.

Technical data can convince a contractor to try a new product. What happens over a trial by fire determines whether it actually stays in the field.

For Evans, Nano-Set has successfully made the leap. What began as a cautious trial is now something he feels compelled to use on every job.

In a trade where experienced applicators can be reluctant to change a process they’ve spent years perfecting, that kind of adoption may say more about the product than anything else.

Ready to take a deeper dive?

Listen to our entire conversation with Jason Evans about Nano-Set on the Pool Magazine Podcast.

The evolution of automatic pool cleaners over the last forty years has been remarkable. Many professionals who have been in the industry long enough remember the Arneson Pool Sweep — the “jellyfish cleaner,” as I called it when I was a child — pulsing its way across the pool floor. Others recall the Ray-Vac, which, to my young imagination, looked exactly like a stingray gliding along the bottom. These early hydraulic cleaners were simple, mechanical, and surprisingly effective for their time, even if most of us didn’t fully understand how they worked.

Today’s Pool Cleaning Landscape

Today, modern pools may rely on in-floor cleaning systems, robotic cleaners, suction-side units, or pressure-side cleaners. Each of these technologies has a legitimate place in the industry, but none of them is universally appropriate. Cleaner selection must be based on hydraulics, debris load, regional environment, and overall system design. It cannot be reduced to brand familiarity or homeowner preference alone.

When a client contacts me about replacing a pool sweep, the evaluation begins long before I recommend a product. I start by examining the filtration system, pump type, plumbing layout, and overall equipment condition. I walk the property and assess the surrounding landscape — not just the client’s trees, but the neighbors’ as well. My mother, who serviced pools long before I did, taught me that anything within a five-mile radius can eventually end up in a pool. She wasn’t exaggerating. That principle still guides my assessments today. Cleaner selection is not a one-size-fits-all decision. It is a hydraulic engineering decision.

Pressure-Side Cleaners Have Their Place

Pressure-side cleaners rely on return-side pressure to move throughout the pool and collect debris. They excel in high-foliage environments because they capture medium-to-large debris in an onboard bag, keeping it out of the pool’s suction plumbing. Booster pump models provide consistent performance and maintain cleaning efficiency regardless of filter condition, though they require dedicated plumbing and increase energy consumption. Non-booster models depend heavily on system hydraulics and can quickly lose effectiveness when filters are dirty, cartridges are failing, or plumbing is undersized. Tires, belts, bearings, and debris bags are the most common wear items. Pressure-side cleaners are particularly effective in heavily landscaped yards, where their wide intake and debris bag help prevent clogging and maintain reliable performance.

Suction-Side Cleaners and System Load

Suction-side cleaners operate using the pool’s existing filtration system and are well-suited for fine debris, dust, and small leaves. They perform especially well in desert environments or pools with minimal foliage, provided the filter is properly sized and well-maintained. Because suction cleaners increase filter load, they require more frequent filter cleanings to maintain performance. Their effectiveness is directly tied to filter condition and pump speed, and they benefit significantly from the addition of an inline leaf canister to help prevent plumbing blockages.

One of the most important lessons I learned early in my career came from trying to help a budget-conscious homeowner. Her older pool lacked a dedicated cleaner line, so I installed a suction cleaner through the skimmer. The cartridges were failing, the hydraulics were weak, and a massive oak tree overshadowed the pool. The cleaner simply could not keep up. It underperformed, I refunded her money, and ultimately lost the client. That experience reinforced a critical truth: cleaner selection must be based on system capability, not just cost.

In-Floor Cleaning Systems

In-floor cleaning systems are engineered directly into the pool structure and rely on pop-up heads to push debris toward the main drain. When properly designed, they provide excellent circulation and a clean aesthetic with no visible cleaner in the pool. However, they require strong pump performance and regular head maintenance, and they can be expensive to repair or retrofit. When the hydraulics are correct, they are highly effective. When they are not, they can become a long-term liability.

Robotic Pool Cleaners

Robotic cleaners operate independently from the pool’s circulation system and offer some of the highest filtration capabilities available today. Many models filter down to 2–5 microns, significantly reducing the workload placed on the pool’s primary filtration system. They excel at wall climbing, tile-line scrubbing, and energy efficiency. Because they operate on low voltage, they must be plugged into a GFCI-protected outlet, and the transformer must be positioned at least ten feet away from the water. Robots should never be operated while swimmers are in the pool.

Despite their advantages, robotic cleaners do have limitations. Motor blocks typically last three to five years, and some units struggle with complex baja shelves, irregular steps, or pools with heavy dog use. Still, for many modern pools, they provide the best overall cleaning performance available today.

Variable-Speed Pumps Changed Everything

Cleaner performance is inseparable from hydraulic conditions. A mismatch between cleaner type and system capability can lead to cavitation, low-flow alarms, heater shutdowns, poor debris removal, excessive filter pressure, and premature equipment wear.

Variable-speed pumps add another layer of complexity. If a pump is programmed too low, suction cleaners stall, pressure cleaners lose drive pressure, in-floor systems fail to pop properly, and heaters or flow switches may shut down.

The best practice is to program a dedicated cleaner speed directly into the automation or pump schedule. For suction cleaners, installing an actuator to isolate the cleaner line during non-cleaning cycles can help preserve skimmer efficiency and extend the cleaner’s lifespan.

Why Geography Matters

Cleaner selection must also account for regional differences. Fine dust in desert climates requires different filtration capabilities than large leaves in wooded environments. Coastal regions introduce sand and silt. High-pollen areas demand stronger micron filtration.

Surface type, pool geometry, and local energy regulations — especially Title 20 and Title 24 requirements in California — all influence cleaner performance and overall system compatibility. A cleaner that performs flawlessly in Northern California may struggle in North Carolina or Southern California simply because of environmental differences.

The Real Lesson Behind the “Jellyfish Cleaner”

The Arneson “jellyfish cleaner” may now be a nostalgic memory, but it still represents an enduring truth: a cleaner only works when it matches the pool’s hydraulics, environment, and system design. Modern cleaners are more advanced, more specialized, and more capable than ever before, but they are also more dependent on proper selection and configuration.

As professionals, our responsibility is to evaluate every pool as a unique hydraulic system and recommend the cleaner that will perform reliably within that environment. Cleaner selection is not a sales decision. It is a technical decision. When done correctly, it leads to cleaner pools, happier clients, and fewer callbacks — a win for both the homeowner and the professional.

Observations From The Field

JR Ramos, Popas’ Pools — Placerville, CA

“We service more than 500 pools each week using a wide variety of cleaners, including pressure-side, return-side, suction-side, and robotic units.

In my experience, the Polaris 280 pressure-side cleaner stands out as one of the sleekest and most durable cleaners on the market, with one of the largest debris bags available.

While replacement parts are affordable, it does require a booster pump, so it may not be the most energy-efficient option. That said, it remains incredibly reliable.”

Dan Lenz — Manhattan, IL

“Before robotics, I was a pressure-side guy. I think it stemmed from the days of the Arneson Pool Sweep and later expanded into Polaris pressure-side cleaners. I was never a fan of suction-side cleaners. In the Midwest, they would clog skimmer or pump baskets too quickly with debris and put major strain on the pump. Cavitation and shaft seal failures were common.

My own pool, which I built in 2006 in the shape of a famous rodent, proved to be a challenge for pressure-side cleaners because, at the time, most had a maximum hose length of only 30 feet. The pool was 48 feet wide and 36 feet tall, and the head alone was a 30-foot-diameter circle. The pressure-side cleaner could barely cover it.

To compensate, I installed in-floor cleaning in the ears. What I didn’t anticipate was that every time the pressure-side cleaner headed toward an ear, the hose would pull tight, causing the cleaner to do a wheelie and fall onto its side, wasting valuable cycle time before righting itself. The ears were always spotless thanks to the in-floor system, and I eventually wished I had installed it throughout the entire pool.

Years later, my pressure cleaner finally died. While waiting for parts, I brought home a demo robotic cleaner from Maytronics. The thing had a 60-foot cord. It rolled over my in-floor heads like roadkill, scooping up debris before the heads even had a chance to rotate. For the first time, I was no longer limited by hose length.

In the twenty years since building that pool, it has basically become a crash-test dummy for everything in the swimming pool industry — pumps, salt systems, ORP and pH metering systems, automation systems from just about every manufacturer you can think of. I’ve probably tested nearly every pool cleaner on the market, and none of them compare to robotics.”